证券时报·2026-01-15 09:41Market Overview - A-share market showed divergence with the Shanghai Composite Index declining while the Shenzhen Component and ChiNext Index rebounded at the close, with total trading volume shrinking to 3 trillion yuan [1] - The Shanghai Composite Index fell by 0.33% to 4112.6 points, while the Shenzhen Component rose by 0.41% and the ChiNext Index increased by 0.56% [1] - Over 3100 stocks in the A-share market were in the red, with significant declines in AI application concepts and commercial aerospace stocks [1] ETF Trading Activity - Notable trading volume in broad-based ETFs, with the CSI 500 ETF reaching approximately 26.3 billion yuan, marking a historical high [2] - Other ETFs such as the CSI 300 ETF also saw significant trading volumes, doubling compared to the previous day [2] Semiconductor Sector - The semiconductor sector experienced a strong afternoon rally, with companies like Blue Arrow Electronics and Silicon Power reaching their daily limit up of 20% [4] - Shanghai Xinyang saw a rise of over 16%, while other semiconductor stocks also performed well, indicating a positive trend in this sector [4] Non-ferrous Metals Sector - The non-ferrous metals sector was active, with stocks like Zinc Industry and Sichuan Gold hitting their daily limit up [8] - The price of silver reached a historical high, surpassing 93 dollars, with gold also hitting record levels at 4643 dollars per ounce [8][10] AI Application Concepts - The AI application sector saw a significant pullback, with stocks like Star Map Control and Worth Buying dropping over 20% [12] - Companies in this sector issued announcements clarifying their limited involvement in AI-related businesses, which contributed to the decline in stock prices [14]